Cesium is a competitor/replacement for on-device library playback on iOS. Spotify competes for streaming. Not clear what you mean by "can't make apps that compete".
Spotify can't compete on the apple homepod, which is a huge (primary?) selling point for apple music.
Sure, you can use airplay, but that's more involved than "hey siri". Being able to just use your voice is great when you're cooking or washing the dishes.
Sure, you can use airplay, but that's more involved than "hey siri". Being able to just use your voice is great when you're cooking or washing the dishes.
Cesium is a great app.